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iiisiieeie TATE BENJAML'N A. EZZAQOSK, O3? PHIIMH'JELEHIA, PENNSYLVANIA. AfiiSIGNOR T0 11633353335 GILG HRIST, OF NEW YORK, N. Y.

PHJQCESS 0F ?RCDUCING POTASSIUM HYDE-ATE FROM SAME).

To all 107mm in may concern Be it known that I, BENJAMIN A. Pmmcig e QiiLiY/ZGH 2f the United States, residing at Phiiadeiphia,in the county of Philadelphia and State e'f Penneylvania have invenifed certain new and useful Improvements in Processes 01 Producing Potassium Hydrate from Green Sand; and I do hereby declare the foilewing' to be a full. clean, and exactdeseripzion of the im'eneion, such as Wiii enable others skiiied in the art to which it appertnins to make and use the same.

'jnis lip/ 511.501 relates to a dry eirecess 01 pmducing potassium hydrate from. green that: most of them are 11 Water. v That is to (iisseive ibout one 01 51W) per cent of such zeolites. (in the other hand, if calcium hyeirexiCi is added to such a solution of these zeolites, a double dec0mp0si1;ion occurs between-that portion of 'the zebliee Whicii'is seiubie in Waiter and that six-1i it is well known. very shghtiy soiubie say, Water Wlii emy portion of she calcium hydroxid which is theemi that a water I soluble in Water, to

inseluble caicium zeolite is formed and potassium hydrate KGH 1s set free in the seine-10m.

As this reaction removes the soluble p01- iien of the petessium zeoiite enofi'ziier parties 1 immeeieiely goes mic soiutien, and this in. (ieeompesed my the calcium hyiiroiz'ui Specification of Lettezs E'atent.

Application filed August 19318. erm Ne. fielififi.

ail the pe'tz'issium hyrhu'ie p11 in a soinble form. is "vention I take 2K mizwmi slich sis or feldspar and heat ii for a, the presence 0f g m'itussium e1 esteesium wiriisoiiate "whereupon ii i 2: eeiisidei-zibie pmpertion of the temi momssium cent appears in fine a sium zeoiite wiiieh is very siigii seis sie in water.

After the mixture of gia-ueenite and peuassiiim bearing ssit has nee-ii thes he: and the petsssiizm zeeiite thus 1)refinesti if. then mic} to the pl'fldflt'i calcium fivnimie water and boil the minimise fer sex in it houratmmospiiei'ie pressureswim. "l" tie'n whereupon Kev-e Elev izien takes phase e mesh appears in the "2min e1 :1. arm, which may recevei eci by fiiteri'n suit hydrate can be e'ii- 'eeterl in an inexpensive furnace and in e very slim-i: time say fifteen or thirty minutes, and. espeeisiiy since the temperature need not be missed iiigiiez' than that of fusion (3f the mixture The boiling ef the zeeiiize thus m'eueeri with calcium hydrate can be eurrieti nut in simple pot open "(0 the stmi'ispheie, and i: need not require. more than an 3101113 and it can further be cairied eutwhile the mass is stili hot fzem theiieat derived from the furnace, thus saving the expense of reheating the same.

It. is obvious that these skilied in the art may vary the detaiis of the pmeess Without departing from the spirit of the invention. and therefore, 1 do not Wish $0 be iiffiii'fiii iii the above diseissm'e escapeas may be quired by the eifitims,

i. The precess 0f producing a QlLKiG seinesium hydrate fremgimicenite ii iieii. c61 in heating said gimieenite Willi. n)" hydrate to form pemssium to the zesiite thus produced and water; bailing the mixture (mt she combined potassium sewu'stin'g out the crude pemssiu thus )mdueed, subsimitieiiy {Lt-3 i 2. he process of extract i.

HUM, vhf" iii,

potassium carried by naturally occnrrmg potassium bearing silicates which Consists in converting said silicates into the form of potassium zeolites; adding to said zeolites calcium hydrate and water; boiling the mixture thus prodncedin a finely divided conclition until substantially all the potassium present'hus been converted into a crude zusow ii hydrate; and separating out said hydrate, substantially as described. i i

In testimony whereof I afiix my signature, in presence of two witnesses BENJAMKN A. PEACUCK.

Witnesses:

' Louis S. Helms, J12,

lviARoAiiET M. SENETT. 

